flash on 2010-4-14

/**
 * Copyright kihon ( http://wonderfl.net/user/kihon )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/qF48
 */

package
{
	import flash.display.Sprite;
	import flash.events.Event;
 
	public class Main extends Sprite
	{
		private var balls:Vector.<Ball> = new Vector.<Ball>();
		private var frame:int = 0;
		
		public function Main()
		{
			addEventListener(Event.ENTER_FRAME, onEnterFrame);
		}
 
		private function onEnterFrame(event:Event):void
		{
			if (frame++ % 10 == 0)
			{
				var ball:Ball = new Ball();
				ball.x = Math.random() * 465;
				ball.y = Math.random() * 465;
				addChild(ball);
				balls.push(ball);
			}
			
			for (var i:int = 0; i < balls.length; i++)
			{
				balls[i].z += 10;
				if (balls[i].z >= 3000)
				{
					removeChild(balls[i]);
					balls.splice(i--, 1);
				}
			}
		}
	}
}

import flash.display.Sprite;

class Ball extends Sprite
{
	public function Ball()
	{
		graphics.beginFill(0x0);
		graphics.drawCircle(0, 0, 10);
		graphics.endFill();
	}
}